This might sound daft but are the maximum heart rate formulas a guide to what heart rate you shouldn't exceed or are they estimates of the maximum you can achieve.
e.g. 220 - 37 (my age) = 183
However, on the turbo trainer I can get my heart rate up to 200 for around a minute fairly repeatably.
Should I reset my target zones based on the Max HR I can achieve or should I not let my HR get so high?
(I realise I should get out and ride but I'm injured at the minute so I've got too much time to think about these things and the trainer is the only option)


